A362902 Number of nonisomorphic multisets of fixed-point-free endofunctions on an n-set with n endofunctions.

1, 0, 1, 22, 81015, 78954264778, 28097782272713021650, 5303746708038163087962610366540, 750301169575330570948709311656320180808090293, 107340347538849305728376873042317973326061404804760169389400111, 20170881768834535901905153264317820972982675109510814553304001503205327205300015737

Offset: 0

Author

Andrew Howroyd, May 10 2023

Keywords

• nonn

Comments

Isomorphism is up to permutation of the elements of the n-set.

Links

• Andrew Howroyd, Table of n, a(n) for n = 0..25

Crossrefs

Main diagonal of A362899.

Cf. A277839.